To get an event listed in the calendar, send your information 14-21 days in advance to: OEcalendar@denverpost.com or fax 303-866-9004. Be sure to include a contact number. Items will run on a per-space basis.
SKI AREA CLOSINGS
June 5
Arapahoe Basin.
June 15
Silverton Mountain.
ADVENTURE RACING
Sunday
Rocky Mountain Orienteering Club’s Mother’s Day Meet; at White Ranch Park in Golden; courses for all ages and skill levels; free for members, $5-$10 for others. fortnet.org/RMOC
June 4
GNC Adventure Sprint Race; mountain bike, navigate, trek, paddle, ropes and possible snowshoe; in Vail; three- to six-hour race; three-person coed teams, $250 per team; amateurs and pros welcome. tevamountaingames.com
CYCLING
Mountain and road
Saturday
2006 Battle the Bear; circuit-style course; at Bear Creek Lake Park, 15600 W. Morrison Road, in Lakewood; cross country races (single speed, pro and semipro); $38-$40; 8 a.m. warriorscyclingcom/home/home.php
Ride the Lightning; 15-mile course, singletrack through trees (some technical riding); all ages; at Montezuma County Fairgrounds, 30100 Highway 160, in Cortez; $15-$25; 9:30 a.m. partnersofmontezuma.org
May 17
Highlands Ranch Ride of Silence; short ride to honor cyclists killed or injured in incidents with motor vehicles; at Bike Source, southeast corner of University Boulevard and County Line Road; 6:30 p.m. rideofsilence.org or 303-877-2437
May 20
Buena Vista Bike Fest; century route to Leadville, along Turquoise Lake Road, around the Mineral Belt Trail and through the Leadville Mining District, then back to Buena Vista; climbing through the first 60 miles, then downhill and flat for the final 40 miles; $40; 7 a.m. bvbf.org
2006 Independence Pass Foundation Ride for the Pass; in Aspen; race and recreational ride, from Aspen to Independence Ghost Town; 20 miles round trip; elevation gain of 2,000 feet; ride the corridor before it opens to automobile traffic; $40; 9 a.m. independencepass.org
May 21
Mission To Ride; start at Rotary Park, Columbine Middle School, in Montrose; a noncompetitive cycling tour; century ride (100 miles), Black Canyon 40-mile, 60-mile or 30-mile; also a 17-mile mountain bike; climb to the Black Canyon of Gunnison National Park; all ages; $25-$65. missiontoride.com
Community Classic Bike Tour; 30/37 mile and metric century, $40-$45; 5-mile, $10; in Loveland; 6:30 a.m. mckeefoundation.com
Aspen Cycling Criterium; in Aspen; a loop route on closed city streets; all levels; $20; 9 a.m. 970-429-2093
May 24
Town Challenge Mountain Bike Race No. 1; at Howelsen Hill Bluffs Circuit, in Steamboat Springs; recreational and competitive; 5:30 p.m. 970-879-4300
May 26
Women’s Mountain Bike workshop with Mia Stockdale, a professional mountain biker, veteran of World Cup and national races; learn new skills; all levels welcome; 5:30-7:30 p.m.; $20. outdoordivas.com
May 27-28
35th Iron Horse Bicycle Classic; Saturday: 47-mile Durango and Silverton Narrow Gauge Railroad road race, starts from the Durango Recreation Center, course travels over two mountain passes, with nearly 5,400 feet in vertical elevation gain, citizens tour races against the train from Durango to Silverton; Sunday: criterium races, kids races, fourth-oldest bike race in the U.S.; $40-$70. ironhorsebicycleclassic.com
HIKING/BACKPACKING
July 10-15, July 17-22
Keystone Mountain Adventures series; introductory backpacking program for teens ages 14-17; learn about low-impact camping, orienteering and cultural history of Summit County. Includes a day rafting the Arkansas River through Brown’s Canyon; $700. keystone.org or 800-215-5585
KAYAKING
May 27-28
Clear Creek Whitewater Festival; freestyle, downriver-cross, boater-cross and slalom events; hosted by Golden River Sports; Clear Creek Whitewater Park, downtown Golden. 303-215-9386
May 31
Raft and Kayak PaddleCross; in Vail; three rafts or four kayaks race on a Class IV section of the Eagle River through Dowd Chute; $100 team, $30 kayaks. tevamountaingames.com
June 1
East vs. West Amateur Kayak Rodeo; in Vail; contest between Front Range and Western Slope; $20. tevamountaingames.com
Paddler Magazine Extreme Creek Race; in Vail; timed race down Class V Homestake Creek; $30. tevamountaingames.com
Ongoing
Lessons and open pool sessions hosted by Golden River Sports; Tuesdays and Thursdays, 6:30-8:30 p.m.; reservations required; Golden Recreation Center. 303-215-9386
Open pool session; Sundays through mid-May; 5:30-7 p.m.; $6, gear extra; Mulberry Pool, 424 W. Mulberry, Fort Collins. 970-493-5720 or themountainshop.com
Open pool session and beginner and expert lessons hosted by Confluence Kayaks; 8-10 p.m. Tuesdays; lesson with gear, $45, open pool access only, $10; reservations required; University of Denver’s El Pomar Natatorium, 2201 East Asbury Ave. 303-433-3676 or confluencekayaks.com
Open pool session and roll clinic hosted by the Boulder Outdoor Center; 8-10 p.m. Saturday and Sunday; clinic $34, open pool access $15; reservations required; Louisville Recreation Center, 900 W. Via Appia, Louisville. 303-444-8420 or boc123.com
Open pool session hosted by Pikes Peak Whitewater Club and Colorado Kayak Supply; 5-7 p.m. Sundays; introductory lessons from 4-5 p.m.; Cheyenne Mountain High School pool, 1200 Cresta Road, in Colorado Springs. pikespeakwhitewaterclub.com
RUNNING
Saturday
Holy Family Hallelujah 5K; 9 a.m.; at Seventh Street and H Road, Grand Junction; $20. 970-256-7227
Barkin’ Dog Duathlon; 5K run and 30K bike; at Cherry Creek State Park, in Aurora; $45 solo, $60 team; 7:30 a.m. racingunderground.com/barkin.html
Pathways 5K run/walk; at Cheesman Park, 1601 E. 8th Ave., in Denver; $10 students and seniors, $20 adults; 8 a.m. parentpathways.org
Alex Hoag Run for Sunshine; at Security Service Field (formerly Sky Sox Stadium), 4385 Tutt Blvd., in Colorado Springs; 5K run (Bolder Boulder qualifier), 10-mile run and children’s run; solo and team; $10-$20; 8 a.m. alexhoagrun.org
Mamma Mia 5K; also 100-yard kids’ dash; official Bolder Boulder qualifier; at City Park, York Street and East 17th Avenue, in Denver; $17-$24; 8:30 a.m. hivcarelink.org
Highlands Ranch Heritage Run 5K; at Recreation Center at Westridge, 9650 South Foothills Canyon Blvd. in Highlands Ranch; $25-$30; 8:30 a.m. hrcaonline.org
Sunday
Title 9K Mother’s Day Run; solo or team; $16-$56; at Boulder Reservoir, in Boulder; 9 a.m. titlenine.com
Colorado Spina Bifida Association 5K Walk, Run and Roll; at Washington Park, in Denver; all ages; $7-$20. coloradospinabifida.org
Colorado Rockies Home Run; at Coors Field, 2001 Blake St., in Denver; 5K run and walk (USATF-certified course); around the field’s warning track; all ages; $15-$25; 8 a.m. colorado.rockies.mlb.com
Mother’s Day Telegraph Trail Run/Walk; run, walk or hike, 10K, 5K or 1-mile fun course; at Horse Gulch Trailhead, 240 E. 8th Ave., in Durango; $12; 10 a.m. durangogov.org
Mother’s Day Mile; $12 solo, $40 family; at Glenwood Medical Associates, 1830 Blake Ave., in Glenwood Springs; 1 p.m. glenwoodraces.com
May 20
Mike the Headless Chicken 5K; part of Fruita’s Mike the Headless Chicken Festival; $20; in downtown Fruita; 9 a.m. 970-858-0360
AirLife Memorial 5K and 10K run/walk; at Hudson Gardens, 6115 South Santa Fe Drive, in Littleton; $13-$26; 8 a.m. airlifedenver.com
Cottonwood Classic 5K; 5K adults (13-59), $20; 5K kids and seniors, $14; at Thorncreek Crossing, 120th Street and Washington Avenue, in Thornton; 8 a.m. 303-694-2030
Federal Cup 5K; run, walk and race walk; $8; at Denver Federal Center, in Lakewood; 8:15 a.m. fedcup5k.com
Gleneagle Spirit 5K Run/Walk for Fun; in the Gleneagle neighborhood, in Colorado Springs; 9 a.m. 719-492-3974
28th Hayden Cog Run; cog, 10K and 5K runs; a challenging 8.4-mile out and back course; 3 miles of steep climb; $25; at Hayden Town Park, in Hayden; 10 a.m. runningseries.com
Wheels and Heels 5K/1K run/walk; all ages; $15-$25; at City Park, in Denver; 10 a.m. parkinsonrockies.org
May 20-21
24 Hours of Boulder … the Run; solo or team; a 7.14-mile course; the person or team that completes the most loops in 24 hours wins; noon to noon; at Boulder Reservoir, in Boulder. geminiadventures.com
Boulder 100; Saturday noon to Sunday 1 p.m.; at Boulder Reservoir, in Boulder; 100 miles; $130. 303-652-9949
May 21
Dolphin Dash 5K/1-mile run/walk and Popsicle Dash; at John Meade Park, in Cherry Hills Village; $10-$60; 9 a.m. chvedadsclub.org
Ongoing
FastForward Sports training programs; running and triathlon; build a foundation for preparing for 5K and 10K races or a triathlon; $129 to $329; meetings available in Boulder and Denver. fastforwardsports.net
Niketown Running Club, meets in front of downtown Denver store Tuesdays at 5:30 p.m., year-round rain or shine. Runs or walks from 3 to 7 miles.303-623-6453 or nikerunning.com
SAILING
Ongoing
Community Sailing of Colorado sailing programs; for children ages 8-17 and adults 18-95; introductory learn to sail, advanced sailing, voyaging and racing; nine-week schedule; at Cherry Creek State Park or Standley Lake Regional Park; certified sailing instructors. communitysailing.org or 303-757-7718
TRAIL RUNNING
May 27
Garfield Grumble; 5-mile extreme trail run, with more than 2,000 feet elevation gain; starts at Garfield trailhead northwest of Palisade; 8 a.m.; $3. 970-245-4243 or 970-245-4382
June 3
U.S. 10K Trail Running Championships, X-1 Mud Run 5K; in Vail; national championship race on Vail Mountain; pro and amateur divisions; $30 for 10K, $25 for 5K. tevamountaingames.com
SKYDIVING
Ongoing
Mile-Hi Skydiving Center; full jumping operations; weekdays 9 a.m. to sunset, weekends 8 a.m. to sunset. 303-702-9911 or mile-hi-skydiving.com
TREE CLIMBING
May 27-28
Basic tree climbing course; sanctioned by Tree Climbers International; covers the basics needed to begin recreational/technical tree climbing, including rope instruction and knotcraft, equipment, hazards, tree selection, tree climbing ethics and more; all equipment provided; 16- to 18-hour course; $450; in Evergreen. treeclimbingco.com or 303-526-2904
TRIATHLON/DUATHLON
May 20
Superior Kiwanis Youth Triathlon; ages 6-15; various lengths for various ages; solo and team; at Rock Creek Recreation Center, 1650 South Indiana Road, in Superior; $25-$30. kiwanis-superior.org/triathlonmain.htm
YMCA of Pueblo Ordinary Mortals Triathlon; swim 525 yards, bike 12 miles, run 3 miles; at Pueblo County High School, 1050 35th Lane, in Pueblo; $50; 6:45 a.m. socorunners.org
LECTURES/CLASSES
Today
Adventure Racing: Then and Now; program with Barry Siff and Dave Mackey, covers history and growth of the sport; at the Chautauqua Community House, 900 Baseline Road, in Boulder; $1-$5; 7 p.m. 303-449-3464
May 16
Training discussion with Colleen Cannon, 1984 world champion and former pro triathlete, and Lorraine Moller, four-time Olympian and winner of the Boston Marathon; 7 p.m. outdoordivas.com
May 21
“Lost Proofing” Exercise at White Ranch Park; near Golden; Sierra Club field trip and introduction to three methods for knowing where you are: terrain association, compass resection and GPS; 5-mile hike; 9 a.m.-1 p.m. 720-837-0074 or bill.campbell@rmc.sierraclub.org
MISCELLANEOUS
May 20
GPS and Map Reading Skills Treasure Hunt; basic GPS operation and navigation in the morning followed by an afternoon of hands-on activities and treasure hunt; bring a GPS unit, compass, pencil and paper; by Dave Hill, local Search and Rescue volunteer and retired Air Force navigator; $30; 9 a.m.-3 p.m. yampatika.org or 970-871-9151
